Ibn Umar (RAA) narrated that the Messenger of Allah (ﷺ) said:

“If anyone seeks refuge in Allah’s name, grant him protection; if anyone asks you for something in Allah’s name give him something; and if anyone does you a favor recompense him, but if you do not have the means to do so, make Dua (supplication) for him.” Related by Al-Baihaqi.

وَعَنْ اِبْنِ عُمَرَ ‏-رَضِيَ اَللَّهُ عَنْهُمَا‏- قَالَ: عَنِ النَّبِيِّ ‏- صلى الله عليه وسلم ‏-قَالَ: { مِنْ اسْتَعَاذَكُمْ بِاَللَّهِ فَأَعِيذُوهُ, وَمَنْ سَأَلَكُمْ بِاَللَّهِ فَأَعْطُوهُ, وَمَنْ أَتَى إِلَيْكُمْ مَعْرُوفًا فَكَافِئُوهُ, فَإِنْ لَمْ تَجِدُوا, فَادْعُوا لَهُ } أَخْرَجَهُ اَلْبَيْهَقِيُّ.‏ [1]‏ .‏