Ishaq bin Yusuf bin Mrdas إسحاق بن يوسف بن مرداس · The Book on Salat (Prayer)

"A man came to the Prophet to ask him about the times for Salat. So he said: 'Stay with us, In sha Allah.' So he ordered Bilal to call the Iqamah when Fajr began, then he ordered him to call the Iqamah when the Sun passed the zenith, then he prayed Zuhr. Then he ordered him to call the Iqamah to pray Asr while the sun was elevated and white. Then he ordered him (to call the Iqamah for) Maghrib…