Musannaf Ibn Abi Shaybah

It is narrated from Hazrat Muhammad bin Ibrahim, who says that Hazrat Ubadah bin Samit said: If I am among those people who remember Allah from the time of the Fajr prayer until sunrise, then this is more beloved to me than being on horseback and striving in the way of Allah until sunrise. And if I am among those people who remember Allah from the time of the Asr prayer until sunset, then this is more beloved to me than being on horseback and striving in the way of Allah until sunset.