Al-Sha'bi (may Allah have mercy on him) narrates that Shurayh (may Allah have mercy on him), concerning the verse: "when the people's sheep strayed into it" [al-Anbiya: 78], said: Nafsh (straying) was at night.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأشربة والحد فيها / 17684