عن أبي سعيد الخدري رضي الله عنه أن النبي صلى الله عليه وسلم قال ما من مسلم يدعو بدعوة ليس فيها إثم ولا قطيعة رحم إلا أعطاه الله بها إحدى ثلاث إما أن يعجل له دعوته وإما أن يدخرها في الآخرة وإما أن يصرف عنه من السوء مثلها قالوا إذا نكثر قال الله أكثر (مجمع الزوائد #17210)

Hazrat Abu Sa‘eed Khudri (radhiyallahu ‘anhu) reports that Rasulullah (sallallahu ‘alaihi wasallam) said, “Whichever Muslim makes du‘aa to Allah Ta‘ala and supplicates to Him, and his du‘aa does not contain any sin (i.e. asking for anything which is impermissible) or the severance of family ties, Allah Ta‘ala will grant him one of three things. Either He will grant him what he had asked for (in this world), or He will keep the reward of the du‘aa for him in the Aakhirah, or He will avert a calamity from him.” The Sahaabah (radhiyallahu ‘anhu) said, “In that case, we will engage in abundant du‘aa.” Rasulullah (sallallahu ‘alaihi wasallam) replied, “Allah Ta‘ala is more than everything (i.e. His power and treasures are more than what you ask for).”