Beast Bond

As in Xanathar's Guide to Everything with the following addition:

At Higher Levels. If you cast this spell using a spell slot of 3rd or 4th level, the duration is up to 1 hour. If you cast this spell using a spell slot of 5th or 6th level, the duration is 8 hours. If you use a spell slot of 7th or 8th level, the duration is 24 hours. If you use a spell slot of 9th level or higher, the duration is 30 days. Using a spell slot of 5th level or higher grants a duration that doesn’t require concentration.