People who come to a mosque where the prayer has been held: those who said there is no harm in praying in congregation

Abu Uthman al-Yashkuri said: Sayyiduna Anas bin Malik (may Allah be pleased with him) came to us when we had already prayed the Fajr prayer. Some people were with him. He ordered a man to call the adhan, then they prayed the two rak'ahs before Fajr. Then they ordered a man to call the iqamah, and he himself went forward and led them in prayer.

The same is reported through another chain.

Abu Hurrah said: Abdullah bin Humayd and I entered a mosque where the prayer had already finished. He said to me: Come, let us pray in congregation. I said: Some people consider that disliked. He said: My father saw no harm in it.

Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) said: Once, the Prophet (peace and blessings be upon him) had already led the people in prayer when a man came. The Prophet (peace and blessings be upon him) said: "Who will trade (for reward) with this man?" At that, a man stood up and prayed in congregation with the one who had come.

Abu Uthman said: After the Prophet (peace and blessings be upon him) had prayed, a man came, so he (peace and blessings be upon him) said: "Who will give charity to this man and pray with him?"

Abdullah bin Yazid said: I entered the mosque of Muharib with Ibrahim, and the people had already prayed, so he led me in prayer.

Ziyad, the freed slave of Quraysh, said: I entered a mosque of Basrah with al-Hasan, and the people had already prayed, so he led me in prayer.

Al-Hasan saw no harm in a second congregation being held after the first congregation in the Masjid al-Kalla' in Basrah.

Al-Hasan said: The predecessors considered a second congregation disliked out of fear of the ruler.

Fudayl bin Amr said: Adi bin Thabit and some of his companions, on returning from a funeral, went to a mosque where the congregation had already taken place and prayed in congregation there. Ibrahim disliked this action.

Al-Ja'd said: Sayyiduna Anas bin Malik (may Allah be pleased with him) came to us at the Fajr prayer when we had already prayed. He established the congregation and led the people in prayer, standing in their middle.

Amr bin Muhammad said: Ata and Salm bin Atiyyah prayed in congregation in the Masjid al-Haram after the congregation had already taken place.

Qatadah said: Those holding a second congregation should all stand in one row, with their imam in their middle.

Salamah bin Kuhayl said: Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) entered the mosque when the people had already prayed. He led Alqamah, Masruq and al-Aswad in prayer.