Harmlessness as the highest form of generosity? Somewhere I thought it was said that the practice of harmlessness was praised by the Buddha as the greatest form of generosity. (I don't remember where I read this.)

Has anything like this been said in the Buddha's teachings or in any Buddhist texts?
Dhamma-dana, the gift of the noble teachings, is said by the Buddha to excel all other gifts:

The gift of Dhamma excels all gifts; the taste of the Dhamma excels all tastes; the delight in Dhamma excels all delights. The Craving-Freed vanquishes all suffering. ~~ Dhp. 354 ~~