Hazrat Abu Bakr bin Ayyash, in the commentary of the verse { فَسَوْفَ یَأْتِی اللَّہُ بِقَوْمٍ یُحِبُّہُمْ وَیُحِبُّونَہُ } of the Holy Qur'an, says that it refers to the people of Qadisiyyah.

Hazrat Abu Bakr bin Amr bin Utbah narrates that Hazrat Umar wrote a letter to Hazrat Sa’d and the other governors of Kufa, saying: The region between ‘Udhaib and Hulwan has come under my authority. This is sufficient for you if you adopt piety and act righteously. And maintain a distance between yourselves and your enemies.

Hazrat Awn bin Abdullah narrates that in the Battle of Qadisiyyah, the belly of a Muslim warrior was torn open and his intestines had come out. He said to a person passing by him, "Put my intestines back inside and make me walk so that I can advance a little further in the path of Allah." So that man did as he was asked.

Hazrat Abu Ishaq says that I saw the companions of Ubaid drinking nabidh of Qadisiyyah, and among them was Amr bin Maymoon as well.

Hazrat Mutarrif narrates that Hazrat Talha bin Ubaidullah bought a piece of land from the people of Sailhin in Kufa. Then he came to Hazrat Umar and mentioned it to him and said that he had bought a fine and beautiful piece of land. Hazrat Umar asked, "From whom did you buy it? From the people of Kufa? Did you buy it from the people of Qadisiyyah?" Hazrat Talha said, "I bought it from all the people of Qadisiyyah." Hazrat Umar said, "You have done nothing; this is spoils of war."

Hazrat Laith says that the warriors of Qadisiyyah invited the non-Arabs to battle and fought with them for three days.

Hazrat Rabee’ bin Umeilah narrates that two men from Kufa and Shaam had a debate with each other. The man from Kufa said,“We participated in the Battle of Qadisiyyah and fought in such and such battles.”The man from Shaam said,“We fought in the Battle of Yarmouk and participated in such and such battles.”Hazrat Hudhaifah (may Allah be pleased with him) said,“None of you witnessed the time when Allah Almighty destroyed the people of ‘Aad and Thamud. When Allah Almighty destroyed them, He did not consider the superiority of one over the other. There is no town greater than Kufa whose people have been entrusted with such a great responsibility.”

Hazrat Riyah narrates that the Muslim Mujahideen found a grave in Madain, in which there was a man whose body was clothed in garments embroidered with gold threads and there was a great deal of wealth. The Mujahideen brought him to Hazrat Ammar bin Yasir. Hazrat Ammar wrote a letter to Hazrat Umar bin Khattab regarding this matter. Hazrat Umar ordered them to give all this wealth to the Mujahideen.

Hazrat Muhammad bin Ubaidullah narrates that Hazrat Umar appointed Saib bin Aqra as the governor of Mada'in. One day, he was sitting in his assembly when a copper tray was brought to him, which was made in the shape of a man's hand. Saib bin Aqra put his hand in the tray and took a handful, saying, "This is mine; Allah has granted this to me." Then he wrote a letter to Hazrat Umar regarding this matter, so Hazrat Umar replied, "You are merely a governor of the Muslims; deposit all of this into the Muslims' treasury (Bait-ul-Mal)."

Hazrat Nu’man bin Humaid narrates that Hazrat Ammar received some spoils of war and distributed a portion of it. Then he wrote a letter to Hazrat Umar to apologize and seek advice. He said to keep the people waiting until the rider arrives.