Imam Hasan al-Basri (may Allah have mercy on him) said: Sayyiduna Aqil bin Abi Talib (may Allah be pleased with him) came to us. When he entered, it was said to him: "May you have harmony and sons." He said: "Say what the Messenger of Allah (peace and blessings be upon him) said: 'May Allah put blessing in you and bless you.'"
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14588