وَإِذْ قَالَ مُوسَى لِفَتَاهُ لَا أَبْرَحُ حَتَّى أَبْلُغَ مَجْمَعَ الْبَحْرَيْنِ أَوْ أَمْضِيَ حُقُبًا
[18:60]
And when Musa said to his servant: I will not cease until I reach the junction of the two rivers or I will go on for years.
Behold, Moses said to his attendant, "I will not give up until I reach the junction of the two seas or (until) I spend years and years in travel."
And when Moses said unto his servant: I will not give up until I reach the point where the two rivers meet, though I march on for ages.