«يستجاب لأحدكم ما لم يعجل يقول: قد دعوت فلم يستجب لي»
The Prophet (peace and blessings be upon him) said:
"The supplication of any one of you continues to be answered as long as he is not hasty and does not say: 'I supplicated, but my supplication was not answered.'"
Hadith Referenceصحیح الجامع الصغیر / حرف الياء / 8085