TIME WHEN THE GATES ARE OPEN H 1139 "The Messenger of Allah, praise and peace be upon him, offered four units of prayer after the sun had started to descend before the mid-day prayer and said, 'This is the hour when the gates of heaven are opened and I desire that some righteous action on my part should rise to heaven during this hour.'" R 1139 Tirmidhi with a chain up to Abdullah the son of Sa'ib who related that the Messenger of Allah, praise and peace be upon him, said this.
1117- وعن عبد الله بن السائب رضي الله عنه : أنَّ رَسُولَ اللهِ صلى الله عليه وآله وسلم كَانَ يُصَلِّي أرْبَعاً بَعْدَ أنْ تَزُولَ الشَّمْسُ قَبْلَ الظُّهْرِ ، وقَالَ : "إنَّهَا سَاعَةٌ تُفْتَحُ فِيها أبْوَابُ السَّمَاءِ ، فَأُحِبُّ أنْ يَصْعَدَ لِي فيهَا عَمَلٌ صَالِحٌ" رواه التِّرمِذِيُّ، وَقَالَ: "حَدِيثٌ حَسَنٌ" .