This has most likely been asked already, but I didn't find it. I apologize if it has.
Casting a touch spell allows a character to 'hold' it until it is released, is there any negative side effect for taking damage while holding.
Example; Cleric casts cure serious wounds and then moves towards the fighter in melee with a creature that has a 15' reach provoking an AoO does the cleric have to make a concentration check to hold the spell?
I haven't seen anything to say 'yes' you have to make a concentration check, but I wanted to check here as well.