II, 2, 43

The Vedanta Sutras, commentary by Sankaracharya (SBE34), tr. by George Thibaut [1890] at sacred-texts.com

43. And (it is) not (observed that) the instrument is produced from the agent.

The Bhâgavata hypothesis is to be rejected for that reason also, that observation never shows us an instrument, such as a hatchet and the like, to spring from an agent such as Devadatta, or any other workman. But the Bhâgavatas teach that from an agent, viz. the individual soul termed Sankarshana, there springs its instrument, viz. the internal organ termed Pradyumna, and again from this offspring of the agent another instrument, viz. the ahankâra termed Aniruddha. Such doctrines cannot be settled without observed instances. And we do not meet with any scriptural passage in their favour.