The agreement made between some of his wives, where they tried to trick him, sallallaahu ‘alayhi wa sallam:
`Aa’ishah said: “The Prophet of Allah, sallallaahu ‘alayhi wa sallam, likedsweets and honey. After he prayed the `Asr prayer, he would visit his wives and would be intimate with them. Allah’s Messenger, sallallaahu ‘alayhi wa sallam, used to drink honey when at the house of Zaynab bint Jahsh, and would spend time with her, so I said: ‘By Allah, we will trick him.’ So, Hafsah and I made an agreement that whoever among us two he visits first should say to him, ‘Have you eaten Maghaafeer (a sweet tasting gum type substance that seeps from a tree called al-`Urfut; it has a very foul smell), you smell like Maghaafeer.’
The Messenger of Allah, sallallaahu ‘alayhi wa sallam, used to hate that he would smell bad or have an odor to him.
So when he, sallallaahu ‘alayhi wa sallam, entered the home of one of them, she said to him what they had agreed to say, and he esponded:
“No, but rather I was drinking honey at Zaynab bint Jahsh’s house; I will not do that again, and I have sworn by Allah [that I will not do
that again], so do not inform anyone of this.” Then, the following verses were revealed (which mean):
«O Prophet! Why do you ban [for yourself] that which Allah has made lawful to you, seeking to please your wives? And Allah is Oft-Forgiving, Most Merciful. Allah has already ordained for you [O men], the dissolution of your oaths. And Allah is your Mawla [Lord, or Master, or Protector, etc.] and He is the All-Knower, the All- Wise. And [remember] when the Prophet disclosed a matter in confidence to one of his wives [Hafsah], so when she told it [to another i.e. Aa’ishah], and Allah made it known to him, he informed part thereof and left a part. Then when he told her [Hafsah] thereof, she said: ‘Who told you this?’ He said: ‘The All-Knower, the All-Aware [Allah] has told me’. If you two [wives of the Prophet of Allah, namely Aa’ishah and Hafsah] turn in repentance to Allah, [it will be better for you], your hearts are indeed so inclined [to oppose what the Prophet likes], but if you help one another against him [Muhammad], then verily, Allah is his Mawla, and Gabriel, and the righteous among the believers, and furthermore, the angels are his helpers. It may be if he divorced you [all] that his Lord will give him instead of you, wives better than you, Muslims [who submit to Allah], believers, obedient to Allah, turning to Allah in repentance, worshipping Allah sincerely, fasting or emigrants [for the sake of Allah], previously married and virgins.»
When Allah said (what means): “but if you help one another against him,” it means that they cooperated with one another until Allah’s Messenger, sallallaahu ‘alayhi wa sallam, forbade that item from himself.