339 – It is reported from Wābisah ibn Maʿbad (may Allah be pleased with him) that “the Messenger of Allah ﷺ saw a man praying behind the row by himself, whereupon he commanded him to repeat the prayer.” Narrated by Ahmad, Abū Dāwūd, and al-Tirmidhī—who graded it sound—and authenticated by Ibn Ḥibbān (1).

Authenticity assessment:
The hadith is ṣaḥīḥ. It was recorded by Ahmad, Abū Dāwūd, al-Ṭaḥāwī, al-Bayhaqī (3/205), and al-Tirmidhī, who said, “A ḥasan hadith.” All of its transmitters are trustworthy. It was also deemed ḥasan by Ahmad, Isḥāq, and Abū Ḥātim. Ibn ʿAbd al-Barr noted some inconsistency in its chain, but Ibn Sayyid al-Nās replied that the inconsistency does not adversely affect it.