The Prophet ﷺ said, "Pray over your dead by night and by day."
حدثنا العباس بن عثمان الدمشقي حدثنا الوليد بن مسلم عن ابن لهيعة عن أبي الزبير
أن النبي ﷺ قال صلوا على موتاكم بالليل والنهار
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Its isnad is daif. Bayhaqi (4/36) narrated it with a sahih isnad from Yahya bin Ishaq Silhini, who reported that Ibn Lahia narrated from Abu Zubayr with the same wording, adding at the end, "Four takbirs alike." See hadith 330 for its defect. As for Abu Zubayr, this was already discussed at hadith 395, where he also used the form "anana," if the chain to him is sound. Yahya bin Ishaq is among the early companions of Ibn Lahia, as mentioned in Tahdhib al-Tahdhib (2/361), in the biographical entry of Hafs bin Hashim.