(29) Excellent Qualities and Description of the Prophet
كتاب الفضائل والشمائل
(3a) Chapter: His Character and Natural Disposition - Section 1
(3) باب في أخلاقه وشمائله صلى الله عليه وسلم - الفصل الأول
Mishkat al-Masabih 5805 
Jabir said that when God's messenger was asked for anything he never said, "No[*]." *Mirqat, 5:388, explains this as meaning that he either gave what was asked or explained why he could not, and refers to Quran, 17:28. (Bukhari and Muslim.)
وَعَنْ جَابِرٍ قَالَ: مَا سُئِلَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ شَيْئًا قَطُّ فَقَالَ: لَا. مُتَّفق عَلَيْهِ
 مُتَّفق عَلَيْهِ  (الألباني)حكم :
Reference : Mishkat al-Masabih 5805
In-book reference : Book 29, Hadith 65