Sayyiduna Fadalah bin Ubayd (may Allah be pleased with him) narrates: The Messenger of Allah (peace and blessings be upon him) was sitting when a man came in and prayed, then said: "O Allah, forgive me and have mercy on me." The Messenger of Allah (peace and blessings be upon him) said to him: "O worshipper, you have been hasty. When you pray and sit, first praise Allah as He deserves, then send blessings upon me, then supplicate to Him." Then another man prayed; he praised Allah and sent blessings upon the Prophet (peace and blessings be upon him), so the Messenger of Allah (peace and blessings be upon him) said to him: "Ask, and you will be given."
Hadith Referenceالمعجم الكبير للطبراني / باب الفاء / 15883