It is narrated from Sayyiduna Habban bin Munqidh (may Allah be pleased with him) that a man said: O Messenger of Allah! Shall I devote a third of my supplication to sending blessings upon you? He (peace and blessings be upon him) said: "Yes, if you wish." He said: Two thirds? He (peace and blessings be upon him) said: "Yes." He said: All of my supplication? The Messenger of Allah (peace and blessings be upon him) said: "Then Allah will suffice you for all your important affairs of this world and the Hereafter."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3561