A BRAHMANA IS HE WHO IS PERFECT
Pubbenivasam yo vedi saggapayan ca passati
Atho jattikkhayam patto abhinna vosito muni
Sabba vosita vosanam tam aham brumi brahmanam.
That sage who knows his former abodes, who sees the blissful and the woeful states,
who has reached the end of births, who, with superior wisdom, has perfected himself,
who has completed (the holy life), and reached the end of all passions,
- him I call a brahmana. 
On one occasion, the Buddha suffered from a gastric ailment and he sent Venerable Upavana to get some hot water from Devahita, who was very pleased to have this rare opportunity to offer something to the Buddha. So, in addition to the hot water, he also gave him some molasses. At the monastery, Upavana prepared the warm bath for the Buddha. After the bath he offered him a mixture of molasses with the hot water. After drinking the mixture, the Buddha felt better. Devahita then came and asked, 'Venerable Sir! An offering made to whom gives more benefit?' The Buddha replied, 'Devahita! An offering made to one who has given up all evil is the most beneficial.'