It is narrated from Hazrat Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: A servant remains on goodness as long as he does not act with haste. The companions (may Allah be pleased with them) asked: O Messenger of Allah (peace and blessings be upon him)! What is meant by haste? He replied: That a servant begins to say, "I have made so many supplications to my Lord, but He has not accepted them."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 13008
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد حسن فى الشواهد، يشهد له حديث أبى هريرة السالف برقم: 10312