ENOfficial
It was narrated from Salman that the : Prophet (saas) said: "Your Lord is Kind and Most Generous, and is too kind to let His slave, if he raises his hands to Him, bring them back empty," or he said "frustrated."
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا أَبُو بِشْرٍ، بَكْرُ بْنُ خَلَفٍ حَدَّثَنَا ابْنُ أَبِي عَدِيٍّ، عَنْ جَعْفَرِ بْنِ مَيْمُونٍ، عَنْ أَبِي عُثْمَانَ، عَنْ سَلْمَانَ، عَنِ النَّبِيِّ ـ صلى الله عليه وسلم ـ قَالَ " إِنَّ رَبَّكُمْ حَيِيٌّ كَرِيمٌ يَسْتَحْيِي مِنْ عَبْدِهِ أَنْ يَرْفَعَ إِلَيْهِ يَدَيْهِ فَيَرُدَّهُمَا صِفْرًا - أَوْ قَالَ خَائِبَتَيْنِ " .
sunnah.com