| Buri |
After 24 hours yes. If a bonus doesn't last long enough to pass that threshold then it can't help you qualify for feats. Also, if the bonus ever goes away even after that 24 hours you lose the benefit of any feats gained through their bonus. But, you do automatically gain their benefit again if your stats ever go above the required amount even if the 24 hours haven't passed. So, you could drink a potion or bull's strength to regain temporary use of any strength based feats, for instance.