3,629. Challah From a Korban Todah and a Korban Nazir
Hilchos Bikkurim 6:5
One need not take challah from the loaves of a thanksgiving offering and the wafers of a nazir that one makes for himself; this is because these things are sanctified. If these things were made to sell in the market to a nazir and to one bringing a thanksgiving offerings, then challah must be taken. This is because the baker plans to eat them if they don’t sell.
Hilchos Bikkurim 6:6
One must take challah from a dough made for partners and a dough made for a group.