Sahih al-Bukhari, Book 78, Hadith 64 (In-Book) ⓘ
Narrated Jabir: Never was the Prophet asked for a thing to be given for which his answer was 'no'.
حَدَّثَنَا مُحَمَّدُ بْنُ كَثِيرٍ، أَخْبَرَنَا سُفْيَانُ، عَنِ ابْنِ الْمُنْكَدِرِ، قَالَ سَمِعْتُ جَابِرًا ـ رضى الله عنه ـ يَقُولُ مَا سُئِلَ النَّبِيُّ صلى الله عليه وسلم عَنْ شَىْءٍ قَطُّ فَقَالَ لاَ.
also referenced under: Hadith 6034 (DarusSalam) & Volume 8, Book 73, Hadith 60 (USC-MSA)