[28].Surah Al-Qasas [The Narration]: Ayat 37

৩৭. মূসা বলল, আমার পালনকর্তা সম্যক জানেন কে তাঁর নিকট থেকে হেদায়েতের কথা নিয়ে আগমন করেছে এবং আখিরাতে কার পরিনাম শুভ হবে। জালিমরা কখনও সফলকাম হবে না।

Ayat 37. Musa PBUH (Moses) said: "My Lord knows best him who came with guidance from Him, and whose will be the happy end in the Hereafter. Verily, the Zalimun (wrong-doers, polytheists and disbelievers in the Oneness of Allah) will not be successful."

Tafseer of Surah Al-Qasas (The Narration) Ayat 37. Moses said: "My Lord knows best who it is that comes with guidance from Him and whose end will be best in the Hereafter: certain it is that the wrongdoers will not prosper." The only argument in such a case is an appeal to Allah and to the ultimate Future. Both of these appeals require Faith. But even if you do not rely on anything so high, you can see that Falsehood or evils crystallized in ancestral customs are not going to do anyone any good.

Hazrat Abdullah bin Busr (May Allah be pleased with him) reported: One of the Companions said, "O Messenger of Allah  [SAWW](PBUH). There are many injunctions of Islam for me. So tell me something to which I may hold fast.'' He said, "Keep your tongue wet with the remembrance of Allah.''  [At-Tirmidhi, Hadith # 3383] 

Lesson : as mentioned above in Surah Al-Qasas Ayat 37. “"My Lord knows best him who came with guidance from Him” Shara'i` is the plural of Shariah Shari'ah is in the sense of Mashru`ah, that is the Divine injunctions. These Divine injunctions are of various kinds, i.e., some of them are obligatory, some desirable and some voluntary. The obligatory ones are compulsory and their compliance is indispensable. What is termed as Mustahabbat (desirables) are also highly important for gaining the Pleasure of Allah. Similarly, voluntary acts are a means of getting close to Allah. Ordinary people are sometimes puzzled by the abundance of the latter and want to adhere to the first two, that is obligations and what comes in the category of desirables. A desire to this effect is mentioned in this Hadith. The Prophet (PBUH) answered the query in this matter by saying to the inquirer, "Keep your tongue wet with the remembrance of Allah.'' Keeping the tongue wet with the remembrance of Allah here means its abundant recitation. In other words, one should make the remembrance of Allah a permanent feature. If one is not able to do many voluntary good works, which some people find difficult, the remembrance of Allah will make up the deficiency in that regard.