Up to six creatures of your choice that you can see within range each regain hit points equal to 2d8 + your spellcasting ability modifier. This spell has no effect on undead or constructs.
At higher levels
When you cast this spell using a spell slot of 3rd level or higher, the healing increases by 1d8 for each slot level above 2nd.
Prayer of Healing healing by spell slot level
Spell slot level
Healing
Average
2nd
2d8 + mod
9 + mod
3rd
3d8 + mod
13.5 + mod
4th
4d8 + mod
18 + mod
5th
5d8 + mod
22.5 + mod
6th
6d8 + mod
27 + mod
7th
7d8 + mod
31.5 + mod
8th
8d8 + mod
36 + mod
9th
9d8 + mod
40.5 + mod
Averages are the dice’s expected total; “mod” is your spellcasting ability modifier. Roll any row in the dice roller.
The 2024 Player’s Handbook revised many spells, and the SRD 5.2 carries the new text. What changed from the 2014 version above:
Its school changed from Evocation to Abjuration.
Added to the Paladin spell list.
Dice in the main effect: 2d8 → 2d8, 1d8.
Casting time
10 minutes
Range
30 feet
Components
V
Duration
Instantaneous
School
Abjuration
Level
2
Classes
Cleric, Paladin
Up to five creatures of your choice who remain within range for the spell's entire casting gain the benefits of a Short Rest and also regain 2d8 Hit Points. A creature can't be affected by this spell again until that creature finishes a Long Rest.
Using a Higher-Level Spell Slot. The healing increases by 1d8 for each spell slot level above 2.
2024 version from the SRD 5.2. Most tables settle on one edition, so check which one yours uses.