Wa laa tattakhizooo aimaanakum dakhalam bainakum ftazilla qadamum ba'da subootihaa wa tazooqus sooo'a bimmaa sadattum 'an sabeelil laahi wa lakum 'azaabun 'azeem
And do not take your oaths as [means of] deceit between you, lest a foot slip after it was [once] firm, and you would taste evil [in this world] for what [people] you diverted from the way of Allah, and you would have [in the Hereafter] a great punishment.