Not graded
Riyad as-Salihin 181
Narrator:Tamīm ad-Dāri
فالأول: عن أبي رقية تميم بن أوس الداري رضي الله عنه أن النبي صلى الله عليه وسلم قال:
" الدين النصيحة"
Tamim bin Aus Ad-Dari (May Allah be pleased with him) reported:
The Prophet (ﷺ) said, "Ad-Deen is sincerity". We said: "For whom?" He replied, "For Allah, His Book, His Messenger and for the leaders of the Muslims and their masses".
[Muslim].
Cited in Riyad as-Salihin (No. 181).