Sayyidina Abu Hurayrah .(RA) reported that Allah’s Messenger said to his uncle (Abu Talib), “Say and I will bear witness for you about that on the Day of Resurrection.” He said. “If it was not that the Quraysh would taunt me that he did not it Fearing death then I surely would cool your eyes (by reciting this kalimah).” So, Allah revealed:
Surely you (0Prophet) cannot guide (anyone) whom you love, but Allah guides whom He will.
(28: 56)