In Az-Zawaa'id, is there an authentic narration in which Abdullaah Ibn Zubair saw a man praying and raising his hands in Du'a during the Tashahhud and then told him: "Verily, the Messenger of Allaah, sallallaahu alayhi wa sallam, used to raise his hands and make Du'a only after completing Salah?" If so, does this raising of the hands in Du'a refer only to Nawaafil prayers or did Abdullaah Ibn Zubair mean to indicate a general practice of the Messenger of Allaah, sallallaahu alayhi wa sallam, after both the Fard and Nawaafil prayers?
All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.
This narration is reported by At-Tabaraani and Al-Albaani classified it as a weak narration in his book "The weak narrations".
As regards the permissibility of raising hands when supplicating after supererogatory or obligatory prayers, please refer to Fatwa 84676.
Allaah Knows best.
You can search for fatwa through many choices