Supplication for one who acquires a slave girl, a wife or a riding animal

Amr bin Shu'ayb narrates from his father, and he from his grandfather (Sayyiduna Abdullah bin Amr bin al-As, may Allah be pleased with them both), that the Messenger of Allah (peace and blessings be upon him) said: "When one of you acquires a slave girl, a wife or a riding animal, let him take hold of her forelock and pray for blessing, and let him say: 'Allahumma inni as'aluka khayraha wa khayra ma jubilat 'alayh, wa a'udhu bika min sharriha wa sharri ma jubilat 'alayh' (O Allah, I ask You for her good and the good of the nature upon which You created her, and I seek refuge in You from her evil and the evil of the nature upon which You created her). And if it is a camel, let him take hold of the top of its hump."
This hadith is sahih (authentic) according to the narrations that trustworthy imams have transmitted from Amr bin Shu'ayb, but the two Shaykhs did not record it in their books by way of Amr (bin Shu'ayb).

It is narrated from Sayyiduna Safinah (may Allah be pleased with him) that Sayyiduna Ali (may Allah be pleased with him) invited a man and prepared food for him. Then he said (to Sayyidah Fatimah, may Allah be pleased with her): "If only we had invited the Messenger of Allah (peace and blessings be upon him) as well, so that he could eat with us." So they invited the Messenger of Allah (peace and blessings be upon him). He came, but on seeing an ornate, decorated curtain (or a cloth with patterns and designs) hung in a corner of the house, he turned back. Sayyidah Fatimah (may Allah be pleased with her) said (to Sayyiduna Ali): "Go after him and ask: 'O Messenger of Allah, what made you turn back?'" (When he asked,) the Messenger of Allah (peace and blessings be upon him) said: "It is not fitting for a prophet to enter a house that has been adorned (with worldly finery)."
The chain of this hadith is sahih (authentic), but the two Shaykhs (Bukhari and Muslim) did not record it.