Sefer Chasidim Siman 852
Can copy this into an AI, or connect the whole library to your assistant. For deeper learning, you can directly use the original seforim, sites, and apps.
הצמא לשתות מים לא יברך ואחר כך ישפוך אלא אם חפץ לשתות מים מן הכלי ישפוך ואחר כך יברך:
Medieval Jewish mysticism, translated by Sholom Alchanan Singer. Northbrook, Ill. Whitehall Co., 1971
One who wants to drink shouldn't first recite a blessing and then pour into a vessel rather he should first pour into a vessel and then recite a blessing if he wants to drink from it.