Brahma Sutras
ॐ स्वात्मना चोत्तरयोः ॐ ॥ २-३-२१॥
If it be objected that the soul is not atomic because its size is heard of as not being so, we reply, no, since that context relates to the other (ie., the supreme Self).
english translation
OM svAtmanA cottarayoH OM ॥ 2-3-21॥
hk transliteration by Sanscript