Chāndogya Upaniṣad 4.4.2

4.4.2

sā hainam uvāca \
nāham etad veda tāta yadgotras tvam asi \
bahv aham carantī paricāriṇī yauvane tvām alabhe \
sāham etan na veda yadgotras tvam asi \
jabālā tu nāmāham asmi \
satyakāmo nāma tvam asi \
sa satyakāmao eva jābālo bruvīthā iti \\404.2\

2. Then she said to him: ‘I do not know this, my dear—of what family you are. In my youth, when I went about a great deal serving as a maid, I got you. So I do not know of what family you are. However, I am Jabālā by name; you are Satyakāma by name. So you may speak of yourself as Satyakāma Jābāla.’