This hadith has been narrated by Mansur with the same chain of transmitters.
Sahih Muslim Book 6, Hadith 307
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I met Abu Mas'ud near the House (Ka'ba) and said to him: A hadith has been conveyed to me on your authority about the two (concluding verses of Surah al-Baqara. He said: Yes. The Messenger of Allah (ﷺ) (in fact) said: Anyone who recites the two verses at the end of Surah al-Baqara at night, they would suffice for him.
Sahih Muslim Book 6, Hadith 306 Next Hadith → If anyone recites the two verses at the end of Surah al-Baqara at night, they would suffice for him 'Abd al-Rahman said: I met Abu Mas'ud and he was circumambulating the House (of Allah) and asked him about this (tradition) and he narrated it to me from the Messenger of Allah (ﷺ).
Sahih Muslim Book 6, Hadith 308
Sahih Muslim Book 6, Hadith 306 Next Hadith → If anyone recites the two verses at the end of Surah al-Baqara at night, they would suffice for him 'Abd al-Rahman said: I met Abu Mas'ud and he was circumambulating the House (of Allah) and asked him about this (tradition) and he narrated it to me from the Messenger of Allah (ﷺ).
Sahih Muslim Book 6, Hadith 308