The Invalidity of the Salaah of a Person Praying Alone Behind the Row (Saff):
`Alee ibn Shaibaan (radiyallaahu `anhu) said: “We came to the Messenger of Allaah (sallallaahu `alaihi wa sallam) and prayed with him and when he completed the Salaah, he found a man praying alone. So the Prophet of Allaah (sallallaahu `alaihi wa sallam) stood near him until he completed the Salaah and then said to him:
“Repeat your Salaah, for there is no Salaah for him who prays alone behind the row.”
Authenticated by Ahmad (Tanqeeh-ut-Tahqeeq, 2/34), Ibn Khuzaimah (1569), Ibn Hibbaan (2202, 2203), An-Nawawee (Al-Khulaasah, 2/718; Al-Majmoo`, 4/298), Ibn Taymeeyah (Majmoo`-ul-Fataawaa, 23/393), Ibn `Abdil-Haadee (Tanqeeh-ut-Tahqeeq, 2/34), Ibn-ul-Qayyim (I`laam-ul-Muwaqqi`een, 2/259), Adh-Dhahabee (At-Tanqeeh, 1/376; Al-Muhadhdhab, 2/1036), Ibn Katheer (Irshaad-ul-Faqeeh, 1/176), Al-Boosayree (Misbaah-uz-Zujaajah, 2/328), Ahmad Shaakir (Sunan-ut-Tirmidhee, 1/431), Al-Albaanee (Al-Irwaa’, 2/328; Al-Eemaan libn Taymeeyah, 12; Saheeh-ul-Jaami`, 949), Shu`aib Al-Arna’oot (Saheeh Ibn Hibbaan, 2202), Al-Hilaalee (Takhreej-ul-Muharrar, 1/453-455; Mawsoo`at-ul-Manaahee, 1/465) and Az-Zuhairee (Buloogh-ul-Maraam, 416).
Ibn Sayyid-in-Naas said: “Its narrators are well-known and reliable.” (C.f. An-Nayl, 4/196). Ibn Hazm (Al-Muhallaa, 4/53) and Ibn Rajab (Fath-ul-Baaree, 5/24) also commented similarly.
Waabisah ibn Ma`bad (radiyallaahu `anhu) said: “A man prayed alone behind the row so the Prophet (sallallaahu `alaihi wa sallam) ordered him to repeat the Salaah.”
Authenticated by Ahmad (Musnad-ud-Daarimee, 1322), Ishaaq (Al-Awsat, 4/184), At-Tirmidhee (230), Ibn Khuzaimah (1570), Ibn Hibbaan (2198-2201), Ibn Hazm (Al-Muhallaa, 6/252, 11/360), Al-Baghawee (Sharh-us-Sunnah, 824), Ibn Taymeeyah (Majmoo`-ul-Fataawaa, 23/393), Ibn-ul-Qayyim (I`laam-ul-Muwaqqi`een, 2/259; Tahdheeb-us-Sunan, 2/376), Ibn-ul-Mulaqqin (Tuhfat-ul-Muhtaaj, 1/461), Ahmad Shaakir (Sunan-ut-Tirmidhee, 1/433-435), Al-Albaanee (Al-Irwaa’, 541; Saheeh Abee Daawood, 3/360-365; Al-Mishkaah, 1062), Shu`aib Al-Arna’oot (Saheeh Ibn Hibbaan, 2198, 2199; Musnad Ahmad, 18002; Sunan-ud-Daaraqutnee, 1364), Husayn Asad (Musnad Abee Ya`laa, 1588; Al-Mawaarid, 403-405; Musnad-ud-Daarimee, 1332, 1333), Al-Huwainee (Ghawth-ul-Makdood, 319), Al-Hilaalee (Takhreej-ul-Muharrar, 393; Mawsoo`at-ul-Manaahee, 1/463-4650 and Az-Zuhairee (Buloogh-ul-Maraam, 415; Al-`Umdat-ul-Kubraa, 229).