Analysis of information sources in references of the Wikipedia article "Zayd ibn Amr" in English language version.
Abdu'l Muttalib matured into a deeply religious man, but in spite of the honour of his position as Guardian of the Ka'bah, he found his personal sympathies lay with the hanifs and not with the multitudes of pagan worshippers who streamed in pilgrimage to the shrine. He used to go off alone to spend long hours of prayer out on the hillsides around Makkah, as his friend Zayd b. Amr the hanif had done.