Umm al-Mu'minin Sayyida Hafsa (may Allah be pleased with her) said: I never saw the Messenger of Allah (peace and blessings be upon him) performing voluntary prayers while sitting, until one year before his passing, he began to perform voluntary prayers while sitting. He would recite the surah with measured recitation (tarteel), so much so that due to his tarteel, that surah would become longer than a surah that was actually longer than it.

It is narrated from Abdullah bin Abdur Rahman bin Abi Sa’sa’ah Al-Ansari Al-Mazini (may Allah have mercy on him) that Sayyiduna Abu Sa’id Al-Khudri (may Allah be pleased with him) said to him: I see that you like sheep and the wilderness, so if you are among your sheep or in the wilderness and you call the adhan for prayer, then raise your voice, for whatever hears the voice of the muezzin—whether jinn, human, or anything else—will bear witness for him on the Day of Resurrection. Abu Sa’id Al-Khudri (may Allah be pleased with him) said: I heard this from the Messenger of Allah (peace and blessings be upon him).

And with this same chain (it is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him) that the Messenger of Allah, peace and blessings be upon him, said: "A man was walking on a path when he saw a thorny branch on the road, so he removed it from the path. Allah appreciated this and forgave him." And the Prophet, peace and blessings be upon him, said: "There are five types of martyrs: the one who dies of plague, the one who dies of a stomach illness, the one who drowns, the one who dies under a collapsed building, and the one who is martyred in the way of Allah." And the Prophet, peace and blessings be upon him, said: "If people knew what (reward) is in the call to prayer and the first row, and they had no way except to draw lots, they would draw lots. And if they knew how much (reward) there is in coming early to the noon prayer, they would compete with each other to get ahead. And if they knew what (reward) is in the night and morning prayers, they would surely come, even if they had to crawl on their knees."

It is narrated from Sayyiduna Mihjan (may Allah be pleased with him) that he was sitting with the Messenger of Allah (peace and blessings of Allah be upon him) in a gathering. Then the call to prayer was given, so the Messenger of Allah (peace and blessings of Allah be upon him) stood up and led the prayer. Then he returned, and Sayyiduna Mihjan (may Allah be pleased with him) was still present in his gathering. The Messenger of Allah (peace and blessings of Allah be upon him) asked him: "Why did you not pray with the people? Are you not a Muslim man?" Mihjan said: "Yes, O Messenger of Allah! I am a Muslim, but I had already performed this prayer at home." So the Messenger of Allah (peace and blessings of Allah be upon him) said to him: "If you have already prayed and (then) come (to the mosque), then pray with the people (again)."

And with the same chain of narration (it is narrated from Sayyiduna Ibn Umar, may Allah be pleased with them both) that the Messenger of Allah, peace and blessings be upon him, said: "Indeed, Bilal gives the call to prayer at night, so eat and drink until Ibn Umm Maktum gives the call to prayer."

And with the same chain (it is narrated) from Nafi' the Tabi'i that on a cold and windy night, Sayyiduna Ibn Umar (may Allah be pleased with them both) gave the adhan and said: «ألا صلوا فى الرحال» Listen! Pray in your dwellings (homes). Then he said: When there was a rainy and cold night, the Messenger of Allah (peace and blessings be upon him) would order the mu'adhdhin to say: «ألا صلوا فى الرحال» Listen! Pray in your dwellings.

And with the same chain of narration, it is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When the call to prayer (adhan) is given, Satan flees while passing wind so that he does not hear the adhan. Then when the adhan is completed, he returns. Likewise, when the iqamah for prayer is pronounced, he turns his back and flees. Then when the iqamah is completed, he comes back until he casts whispers between a person and his heart. He says, 'Remember such and such thing,' which he had not remembered before, until (because of these whispers) a person does not know how much he has prayed."

It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "When you hear the (call to) adhan, then say as the mu'adhdhin says."