It is narrated from Sayyiduna Abu Dharr (may Allah be pleased with him); he said: I heard the Messenger of Allah (peace and blessings be upon him) say: "There is no Arabian horse that is not permitted, at every dawn, to make two supplications. It says: 'Allahumma innaka khawwaltani man khawwaltani min bani Adam, faj'alni ahabba ahlihi wa malihi ilayhi' (O Allah, You have placed me in the possession of whomever You have from the children of Adam, so make me more beloved to him than his family and his wealth)." This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.