Narrated Abdullah ibn Umar: The Prophet صلی اللہ علیہ وسلم said: One of you must not ask a woman in marriage when his brother has done so already, and one of you must not sell (his own goods) when his brother has already sold (his goods) except with his permission.

Abu Hurairah reported the Messenger of Allah صلی اللہ علیہ وسلم as saying“ A man should not seek the hand of a woman in marriage when his brother has already sought her hand. ”

Narrated Abdullah bin Umar: The Messenger of Allah صلی اللہ علیہ وسلم as saying: None of you must buy in opposition to one another ; and do not go out to meet the merchandise, (but one must wait) till it is brought down to the market.

Abu Hurairah said: Do not go our to meet what is being brought (to market for sale). If anyone does so and buys some of it, the owner of merchandise has a choice (of canceling the deal) when it comes to the market. Abu Ali said: I heard Abu Dawud say: Sufyan said: none of you must buy in opposition to one another ; that is he says: I have a better one for ten (dirhams).

Narrated Abu Hurairah: The Prophet صلی اللہ علیہ وسلم forbade to bid against one another.

Narrated Abu Hurairah: The Messenger of Allah صلی اللہ علیہ وسلم as saying: Do not go out to meet riders to conduct business with them ; none of you must buy in opposition to one another; and do not tie up the udders of camels and sheep, for he who buys them after that has been done has two courses open to him after milking them: he may keep them if he is pleased with them, or he may return them along with a sa' of dates is he is displeased with them.