Hazrat Qais narrates that Hazrat Abu Ubaid bin Mas’ud was with his companions in the battle of Mehran. After they had crossed, the bridge was cut off and they were martyred. Hazrat Qais says that in the battle of Mehran, some people, among whom was Hazrat Khalid bin ‘Arfatah, said to Hazrat Jarir,“O Jarir! We will never leave our place.”He said,“O Jarir! We should cross this river.”I said,“Do you want them to do to us what they did to Abu Ubaid? We are a people who do not know how to swim. We will not leave our area until Allah decides between us and them.”So the polytheists crossed it, and on that day Mehran was killed; at that time he was at a place called Nakhilah.

! The content of this narration is not clear. The researcher of Musannaf Ibn Abi Shaybah, Muhammad Awwamah, writes in the footnote of this hadith: "There are words in the narration that I could not discern."

Hazrat Abu Uthman narrates that when Hazrat Abu Ubaid was martyred and his companions were defeated, Hazrat Umar (may Allah be pleased with him) said that I will take revenge on your behalf.

Hazrat Ibn Sirin narrates that when Hazrat Umar (may Allah be pleased with him) received the news of Abu Ubaid Thaqafi's martyrdom, he said that if I get the opportunity, I will take revenge for him.

Hazrat Hanish bin Harith Nakha'i narrates from the elders of his tribe that when Hazrat Jarir killed Mehran, he placed his head on a spear.

Hazrat Saad bin Ibrahim narrates that on the day of the martyrdom of Hazrat Abu Ubaid, he passed by a man whose hands and feet had been cut off. He was reciting this verse of the Holy Qur'an: { مَعَ الَّذِینَ أَنْعَمَ اللَّہُ عَلَیْہِمْ مِنَ النَّبِیِّینَ وَالصِّدِّیقِینَ وَالشُّہَدَائِ وَالصَّالِحِینَ وَحَسُنَ أُولَئِکَ رَفِیقًا }. A person passing by him asked, "Who are you?" He replied, "I am an Ansari."

Hazrat Qais says that I participated in the Battle of Qadisiyyah on the side of the Muslims. Hazrat Sa’d bin Abi Waqqas was the commander of the Muslims in this battle. When Rustam came with his army, Hazrat Amr bin Ma’di Karib Zubaidi passed through the ranks of the Muslims and said to them,“O group of Muhajireen! Become brave lions, the real lion is the one who does not care for his life. It is the temperament of the Persians that when they throw down their spear, they are like goats. Around their territory are great walls which arrows cannot cross.”We said to him,“O Abu Thawr! Beware of them.”Then we shot arrows; one arrow struck the horse of the king of the Persians. Then Hazrat Amr attacked him, killed him, and obtained his belongings, which included two gold bracelets, a sheet, and a silk robe. (2) A man from Thaqif fled and went to inform the polytheists, and while pointing towards Bajilah, he said,“People are coming from that side.”Then they sent sixteen elephants towards us, on which warriors were mounted, and sent two elephants towards all the people. On that day, Hazrat Sa’d was saying,“Move back from Bajilah.”Hazrat Qais says that in the Battle of Qadisiyyah, we were one fourth of the people. And Hazrat Umar (may Allah be pleased with him) gave us one fourth of the war equipment, and we used it for three years. (3) After that, Hazrat Jarir came with a delegation in the company of Hazrat Ammar bin Yasir to Hazrat Umar. Hazrat Umar said to them,“You both did not tell me about those two houses of yours. Even so, I ask you, and I can judge from your faces which of the two houses is better?”Hazrat Jarir said,“O Commander of the Faithful! I will inform you. One house is the one that yields fewer dates from the land of Arabia, and the other house is the land of Persia, its heat, its intensity, and its vast valley, that is, Mada’in.”He says that Hazrat Ammar contradicted me and said,“You have lied.”Hazrat Umar said,“You are lying.”Then he said,“Shall I tell you about your leader, is he sufficient for you?”The people said,“He is neither sufficient nor does he know the principles of governance.”Then Hazrat Umar removed him and sent Hazrat Mughirah bin Shu’bah as the leader.

Hazrat Qais narrates that during the Battle of Qadisiyyah, Hazrat Sa’d bin Abi Waqqas developed a boil on his foot and was unable to go for combat. There was restlessness among the people. The wife of Hazrat Sa’d, who had previously been married to Mathna bin Harithah Shaybani, said,“There is no one like Mathna for the horsemen!”Upon this, Hazrat Sa’d slapped her. She said,“Out of cowardice and honor!”The narrator says that then we defeated the enemies.

Hazrat Qais narrates that Hazrat Sa’d bin Abi Waqqas had a wife named Salma bint Khusafah, who had previously been married to a man from Banu Shayban, named Mathna bin Harithah. Once, she mentioned Mathna in front of Hazrat Sa’d, so Hazrat Sa’d slapped her. She said,“Do you hit me out of cowardice or out of honor?”

Hazrat Muhammad bin Sa’d narrates that during the Battle of Qadisiyyah, one day the poet Abu Mihjan was brought to Hazrat Sa’d bin Abi Waqqas on the charge of drinking wine. Hazrat Sa’d ordered him to be shackled. At that time, Hazrat Sa’d was injured and could not go to the people. Therefore, he chose the area of the spring named ‘Udhayb for the supervision of his warriors and began to inspect. He had appointed Khalid bin ‘Arfatah as the leader of the cavalry. When the battle began, Abu Mihjan recited a verse of poetry, the translation of which is:“How regrettable it is that you are killing the horsemen while I am shackled in chains.”(2) Then he said to Hazrat Sa’d’s wife, Bint Khusafah,“Set me free; I swear that if I remain alive, I will return and shackle myself again, and if I am killed, I will request prayers for mercy.”Then Bint Khusafah released him, and by then the battlefield had become heated. (3) He leapt and mounted Hazrat Sa’d’s horse named Balqa’, took a spear, and attacked the enemy. Wherever he went, he defeated the enemy. So much so that people began to say,“This is the king!”And Hazrat Sa’d was saying,“The leap is that of my horse Balqa’, and the spear-thrust is that of Abu Mihjan, while Abu Mihjan is in prison!”(4) When the enemy was defeated, Abu Mihjan returned and shackled himself again. Bint Khusafah told Hazrat Sa’d the whole incident, so he said,“By God, I cannot enforce the punishment on a man because of whom Allah granted victory to the Muslims.”Then Hazrat Sa’d set Abu Mihjan free. Upon this, Abu Mihjan said,“When the punishment was enforced upon me, I used to drink wine and would be purified by the punishment, but now that you have pardoned me from the punishment, by God, I will never drink wine again.”