It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "Sacrifice (udhiyah) has been made obligatory upon me, and it has not been made obligatory upon you; and I have been commanded to perform the forenoon prayer (Duha), and you have not been commanded."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 11992