Narrated Wabisah bin Ma'bad: Allah's Messenger ( صلی اللہ علیہ وسلم ) saw a man praying alone behind the row so he ordered him to repeat the Salat (prayer). [Reported by Ahmad, Abu Dawud and at-Tirmidhi. The latter graded it Hasan, and Ibn Hibban graded it Sahih (authentic)] . Ibn Hibban reported this from Talq [bin 'Ali (RA)] : "The prayer of a person who prays alone behind the row is not accepted. And at-Tabarani added to the narration of Wabisah, "Why did you not join them or pull back a man (to your position)?"

Narrated Abu Hurairah (RA): The Prophet ( صلی اللہ علیہ وسلم ) said: "If you hear the Iqamah, you must walk to the prayer (place) with tranquility and dignity, and do not hasten; and whatever portion of the prayer you get (along with the Imam) offer it, and complete afterwards whatever you missed. [Agreed upon, and the wording is al-Bukhari's).

Narrated 'Ubai bin Ka'b (RA): Allah's Messenger ( صلی اللہ علیہ وسلم ) said: "A man's prayer offered with another man is purer than his prayer which he offers alone, and his prayer with two men is purer than his prayer with one and if they are more (in number), it is more beloved to Allah, the Mighty the Majestic." [Reported by Abu Dawud and an-Nasa'i. And Ibn Hibban graded it Sahih (authentic)] .

Narrated Umm Waraqah: The Prophet ( صلی اللہ علیہ وسلم ) commanded her to lead the members of her household (in prayer). [Reported by Abu Dawud; Ibn Khuzaimah graded it Sahih (authentic)] .

Narrated Anas (RA): The Prophet ( صلی اللہ علیہ وسلم ) appointed Ibn Umm Maktum (RA) to lead the people in prayer in his absence and he [Ibn Umm Maktum (RA)] was blind. [Reported by Ahmad and Abu Dawud] . Ibn Hibban also reported something similar from 'Aishah (RA).

Narrated Ibn 'Umar (RA): Allah's Messenger ( صلی اللہ علیہ وسلم ) said: "Pray (funeral prayers) over him who said (believed): 'Nothing deserves to be worshiped except Allah'; and pray behind him who says: 'Nothing deserves to be worshiped except Allah'." [ad-Daraqutni reported it through a weak chain of narrators] .

Narrated 'Ali bin Abi Talib (RA): Allah's Messenger ( صلی اللہ علیہ وسلم ) said: "If one of you comes to Salat (prayer) and the Imam is at a certain position, he must do as the Imam is doing." [Reported by at-Tirmidhi with a weak chain of narrators] .