It is narrated from Sayyidah Umm Kulthum bint Uqbah (may Allah be pleased with her). Sufyan said: She had prayed towards both qiblahs with the Messenger of Allah (peace and blessings be upon him). She said: The Messenger of Allah (peace and blessings be upon him) said: "The best charity is that given to a close relative who harbours hostility in his heart."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قسم الصدقات / 13223