It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that such people have testified to me—"whose words are trustworthy, among them is Sayyiduna Umar (may Allah be pleased with him), who in my view is the most trustworthy among them"—that the Prophet (peace and blessings be upon him) used to say: No voluntary prayer should be performed after the Asr prayer until sunset, and no prayer should be performed after the Fajr prayer until sunrise.