In Surah Al-Baqarah, verses 246 to 252, which speak about the story of Talut (Saul), is passing the river (in verse 249) the only trial?
In tafsir Ibn Katheer it says that the soldiers were initially 80000 (eighty thousand), then 76000 (seventy six thousand) drank from the river, leaving 4000 (four thousand). But in another narration, it says that the number of the remaining soldiers that fought Jalut (Goliath) were the same as the number of soldiers in the Battle of Badr, which I think is 314 or 315.
Does that mean that there was a trial after the river? Allah knows best