The word(s) "knowingly" appears 13 time(s) in 13 verse(s) in Quran in Muhammad Pickthal translation.

(11) And those unto whom they cry instead of Him possess no power of intercession, saving him who beareth witness unto the Truth knowingly.

(12) These it was who disbelieved and debarred you from the Inviolable Place of Worship, and debarred the offering from reaching its goal. And if it had not been for believing men and believing women, whom ye know not - lest ye should tread them under foot and thus incur guilt for them unknowingly; that Allah might bring into His mercy whom He will - If (the believers and the disbelievers) had been clearly separated We verily had punished those of them who disbelieved with painful punishment.

(13) Hast thou not seen those who take for friends a folk with whom Allah is wroth? They are neither of you nor of them, and they swear a false oath knowingly.