Abu ‘Abdur-Rahmān Mu‘āwiyah ibn Abi Sufyān (may Allah be pleased with him) reported: The Messenger of Allah (may Allah's peace and blessings be upon him) said: "Do not be importunate in asking (for something), for by Allah, if one of you asked me for something and I gave it to him while I am reluctant, there will be no blessing in what I gave him." Authentic hadith - Narrated by Muslim