The word(s) "thankful" appears 2 time(s) in 2 verse(s) in Quran in Saheeh International translation.

(1) Say, "Who rescues you from the darknesses of the land and sea [when] you call upon Him imploring [aloud] and privately, 'If He should save us from this [crisis], we will surely be among the thankful.' "

(2) It is He who enables you to travel on land and sea until, when you are in ships and they sail with them by a good wind and they rejoice therein, there comes a storm wind and the waves come upon them from everywhere and they assume that they are surrounded, supplicating Allah, sincere to Him in religion, "If You should save us from this, we will surely be among the thankful."