192.

When going out to war was it Saul (Talut) who tested his soldiers by how they drank water?

Bible: No Qur'an: Yes

Judges 7:2-6 – 5. the Lord said unto Gideon, Every one that lappeth of the water with his tongue, as a dog lappeth, him shalt thou set by himself; likewise every one that boweth down upon his knees to drink.

Al-Baqarah 2:247-252 – 247. Their Prophet said to them: "Allah hath appointed Saul as king over you."… 249. When Saul set forth with the armies, he said: "Allah will test you at the stream: if any drinks of its water, he goes not with my army: Only those who taste not of it go with me: A mere sip out of the hand is excused."

Note: In the Bible it was not Saul but Gideon who tested his soldiers by how they drank water. Saul lived during the time of David from around 1010 < 971 B.C. but Gideon lived a hundred years before them from around 1162 < 1122 B.C.