al-Husain bin Hryth الحسين بن حريث · The Book on Jana''iz (Funerals)

"There are three times that the Messenger of Allah prohibited us from performing Salat in, burying our dead in: When the sun's rising appears until it has risen up; when the sun is at the zenith until it passes, and when the sun begins its setting, until it has set."

"The Messenger of Allah passed by the graves of Al-Madinah, so he turned his face towards them and said: (As-Salamu alaikum ya ahlul-qubur! Yaghfirul-lahu lana wa lakun, antum salafuna wa nahnu bil-athar.) 'Peace be upon you O inhabitants of the grave! May Allah forgive us and you; you are our predecessors and we are to follow you.'"