Narrated Abu Huraira: Allah's Apostle said, "For every prophet there is one (special invocation (that will not be rejected) with which he appeals (to Allah), and I want to keep such an invocation for interceding for my followers in the Hereafter."
Hadith Referenceصحيح البخاري / كتاب الدعوات / 6304
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة
Narrated Anas: that the Prophet said, "For every prophet there is an invocation that surely will be responded by Allah," (or said), "For every prophet there was an invocation with which he appealed to Allah, and his invocation was accepted (in his lifetime), but I kept my (this special) invocation to intercede for my followers on the Day of Resurrection."
Hadith Referenceصحيح البخاري / كتاب الدعوات / 6305
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة