اِتَّخَذُوْٓا اَيْمَانَهُمْ جُنَّةً فَصَدُّوْا عَنْ سَبِيْلِ اللّٰهِ ۗاِنَّهُمْ سَاۤءَ مَا كَانُوْا يَعْمَلُوْنَ ( المنافقون: ٢ )
Ittakhazoo aymaanahum junnatan fasaddoo 'an sabeelil laah; innahum saaa'a maa kaanoo ya'maloon (al-Munāfiq̈ūn 63:2)
They have taken their oaths as a cover, so they averted [people] from the way of Allah. Indeed, it was evil that they were doing. (Al-Munafiqun  : 2)
1 Mufti Taqi Usmani
They have made their oaths a shield, and thus they have prevented (others) from the way of Allah. Surely evil is what they have been doing.