[20].Surah Taha [Tâ-Hâ]: Ayat 131-132

Ayat 131. And strain not your eyes in longing for the things We have given for enjoyment to various groups of them (polytheists and disbelievers in the Oneness of Allah), the splendor of the life of this world that We may test them thereby. But the provision (good reward in the Hereafter) of your Lord is better and more lasting.

Ayat 132. And enjoin As-Salat (the prayer) on your family, and be patient in offering them [i.e. the Salat (prayers)]. We ask not of you a provision (i.e. to give Us something: money, etc.); We provide for you. And the good end (i.e. Paradise) is for the Muttaqun (pious).

[Tafseer] Nor strain thine eyes in longing for the things We have given for enjoyment to parties of them, the splendour of the life of this world, through which We test them: but the provision of thy Lord is better and more enduring. The good things of this life make a brave show, but they are as nothing compared with the good of the Hereafter. Both are provided by Allah, but the former are given to the just and the unjust as a test and trial, and in any case will pass away: while the latter come especially from Allah for his devoted servants, and are incomparably of more value and will last through eternity. Enjoin prayer on thy people, and be constant therein. We ask thee not to provide sustenance: We provide it for thee. But the (fruit of) the Hereafter is for righteousness. Sustenance, in the sense of the ordinary needs of life, the man of Allah does not worry about. That is provided by Allah for all, the just and the unjust. But the special provision, the real Sustenance, the spiritual fruit, is for a righteous life in the service of Allah.

Hazrat Abud-Darda' (May Allah be pleased with him)reported: I heard the Messenger of Allah [SAWW](PBUH) saying, "If three men in a village or in the desert, make no arrangement for Salat in congregation, Satan must have certainly overcome them. So observe Salat in congregation, for the wolf eats up a solitary sheep that stays far from the flock.''

[Abu Dawud Hadith # 547]. 

Lesson : as mentioned above in Surah Taha Ayat 132."enjoin As-Salat (the prayer) on your family," This Hadith also stresses the importance of offering Salat in congregation and mentions the disadvantages of offering it individually. One who remains aloof from the congregation, is like the sheep which is separated from its herd and becomes a victim of the wolf. One who lives alone is easily overpowered by satanic doubts.