Corollary 5
Tag 0AB9, permanent. Cite it as [Bourbaki, Tag 0AB9].
Lie Groups and Lie Algebras, chapter III, § 3. Passage from a Lie group to its Lie algebra
Let be a finite-dimensional algebra. Suppose that is of characteristic 0. The automorphism group of is a Lie subgroup of and is the Lie algebra of derivation of .
This follows from Corollary 1 (applied to ) and Corollary 2 of Proposition 39 (applied to the subset of consisting only of multiplication on ).
Bourbaki puts the proof directly after the statement, so what is above is the statement and its proof together.