It is narrated from Qasim Shaybani that Sayyiduna Zayd bin Arqam (may Allah be pleased with him) saw some people performing prayer at the time of Duha, so he said: These people know well that prayer is more virtuous at a time other than this. The Noble Prophet (peace and blessings be upon him) said that "the prayer of the oft-returning (awabeen)" is at the time when the feet of the young camels begin to burn (i.e., when the sun has risen high and the heat has intensified).