Jaiminīya (Talavakāra) Brāhmaṇa 2-5.183

2-5.183

As for the [nights] which he spends in the wilderness, he should spend them right by an udumbara tree.
When Prajāpati divided nourishment [and] food among his creatures, the remnant that was left over became this tree.
For the udumbara is nourishment, is food.
The wilderness is food that has gone away from him who gives all.
Whatever food is here a trace of Prajāpati, he secures precisely that through these [nights].
Now, as for the [nights] which he spends neither in the village nor in the wilderness, he should spend them right among the Niṣādas.
For the Niṣādas are neither in the village nor in the wilderness.
Through these [nights], he approaches both kinds of food: that of the village and that of the wilderness.
Whatever food is here a trace of Prajāpati, he secures precisely that through these [nights].
Now, as for the [nights] which he spends among [foreign] people, he should spend them either with a Vaiśya or with a rival.
For a Vaiśya or a rival is the [foreign] person to a Brahmin.
Food among [foreign] people has gone away from him who gives all.
Whatever food is here a trace of Prajāpati, he secures precisely that through these [nights].
Now, as for the [nights] which he spends among his own people, he should spend them right with a king.
For the king is indeed one's own people.
And the highest reach of food is prosperity; right at the highest reach of food, in prosperity, he firmly establishes himself at the end.