The word(s) "both" appears 78 time(s) in 73 verse(s) in Quran in Muhammad Habib Shakir translation.

(71) If you both turn to Allah, then indeed your hearts are already inclined (to this); and if you back up each other against him, then surely Allah it is Who is his Guardian, and Jibreel and -the believers that do good, and the angels after that are the aiders.

(72) Allah sets forth an example to those who disbelieve the wife of Nuh and the wife of Lut: they were both under two of Our righteous servants, but they acted treacherously towards them so they availed them naught against Allah, and it was said: Enter both the fire with those who enter.

(73) Perdition overtake both hands of Abu Lahab, and he will perish.