Ta-Ha - 20:37

وَلَقَدْ مَنَنَّا عَلَيْكَ مَرَّةً أُخْرَى
[20:37]
And certainly We bestowed on you a favor at another time;
"And indeed We conferred a favour on thee another time (before).
And indeed, another time, already We have shown thee favour,