Sahih al-Bukhari 6305
Narrated Anas:
that the Prophet (ﷺ) 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."
وَقَالَ لِي خَلِيفَةُ قَالَ مُعْتَمِرٌ سَمِعْتُ أَبِي، عَنْ أَنَسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏
"‏ كُلُّ نَبِيٍّ سَأَلَ سُؤْلاً ـ أَوْ قَالَ لِكُلِّ نَبِيٍّ دَعْوَةٌ قَدْ دَعَا بِهَا ـ فَاسْتُجِيبَ، فَجَعَلْتُ دَعْوَتِي شَفَاعَةً لأُمَّتِي يَوْمَ الْقِيَامَةِ ‏"‏‏.‏