Walid said, "I heard Abu Amr, meaning Uzai, say that its beginning is its best part."
قال الوليد سمعت أبا عمرو يعني الأوزاعي يقول سره أوله
No references are available.
Chain classification, its isnad is hasan. Bayhaqi narrated it, 4/211, from the hadith of Abu Dawud through this route. Some scholars said, the correct view is that its secret time is at its end.