Al-Bukhari recorded that `Imran bin Husayn said that, the Messenger of Allah said,
«صَلِّ قَائِمًا، فَإِنْ لَمْ تَسْتَطِعْ فَقَاعِدًا، فَإِنْ لَمْ تَسْتَطِعْ فَعَلَى جَنْب»
(Pray while standing, and if you can't, pray while sitting, and i
f you cannot do even that, then pray lying on your side.)
These people remember Allah in all situations, in their heart and speech.
Allah also praises His believing servants,
﴿الَّذِينَ يَذْكُرُونَ اللَّهَ قِيَـماً وَقُعُوداً وَعَلَى جُنُوبِهِمْ وَيَتَفَكَّرُونَ فِى خَلْقِ السَّمَـوَتِ وَالاٌّرْضِ﴾
(Those who remember Allah standing, sitting, and lying down on their
sides, and think deeply about the creation of the heavens and the
earth), supplicating;
﴿رَبَّنَآ مَا خَلَقْتَ هَذا بَـطِلاً﴾
("Our Lord! You have not created this without purpose,'')
You did not create all this in jest and play. Rather, You created it in
truth, so that You recompense those who do evil in kind, and reward
those who do righteous deeds with what is better.
The faithful believers praise Allah and deny that He does anything in jest and without purpose, saying,
﴿سُبْحَـنَكَ﴾
("glory to You,''), for You would never create anything without purpose,
﴿فَقِنَا عَذَابَ النَّارِ﴾
("Give us salvation from the torment of the Fire.''), meaning, "O You
Who created the creation in truth and justice, Who is far from any
shortcomings, or doing things without purpose or with jest, save us from
the torment of the Fire with Your power and strength. Direct us to
perform the deeds that make You pleased with us. Guide us to righteous
work from which You admit us into the delightful Paradise, and save us
from Your painful torment.''
﴿وَيَتَفَكَّرُونَ فِى خَلْقِ السَّمَـوَتِ وَالاٌّرْضِ﴾
(and think deeply about the creation of the heavens and the Earth),
contemplating about signs in the sky and earth that testify to the
might, ability, knowledge, wisdom, will and mercy of the Creator
