Sahih Muslim · Hadith 6393
The Book Pertaining to the Merits of the Companions (Allah Be Pleased With Them) of the Holy Prophet - كتاب فضائل الصحابة رضى الله تعالى عنهم
حدثنا زهير بن حرب، حدثنا عبد الرحمن، عن سفيان، عن المقدام بن شريح، عن أبيه، عن سعد، في نزلت { ولا تطرد الذين يدعون ربهم بالغداة والعشي} قال نزلت في ستة أنا وابن مسعود منهم وكان المشركون قالوا له تدني هؤلاء .
Sa'd reported: This verse was revealed in relation to six persons and I and Ibn Mas'ud were amongst them. The polytheists said to him (the Holy Prophet): Do not keep such persons near you. It was upon this that (this verse was revealed):" Drive not away those who call upon their Lord morning and evening desiring only His pleasure" (vi. 52).
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).