33:18 God already knows which of you are the hinderers, and those who say to their brothers: "Come and stay with us." Rarely do they mobilize for battle.
The Monotheist Group (The Quran: A Monotheist Translation)
Dictionaries
Ejtaal Arabic Almanac: Lane's Lexicon, Hans Wehr, Lisan al-Arab and others
for, [O Muhammad,] thou hast never been able to recite any divine writ ere this one [was revealed], nor didst thou ever transcribe one with your own hand* or else, they who try to disprove the truth [of thy revelation] might indeed have had cause to doubt [it].*