It was narrated from Ibn 'Umar that the Messenger of Allah ﷺ forbade praying when the sun is rising or setting. (Using translation from Nasāʾī 564)  

«أَنَّ رَسُولَ اللهِ ﷺ نَهَى أَنْ يُصَلَّى مَعَ طُلُوعِ الشَّمْسِ أَوْ غُرُوبِهَا»  

'A'isha reported that 'Umar misconstrued the fact that the Messenger of Allah ﷺ had prohibited the observance of prayer at the time of the rising sun and at the time of its setting. (Using translation from Muslim 833a)   

عَائِشَةُ أُوِهَمَ عُمَرَ إِنَّمَا نَهَى رَسُولُ اللهِ ﷺ أَنْ يُتَحَرَّى طُلُوعُ الشَّمْسِ أَوْ غُرُوبُهَا