[23].Surah Al-Muminun [The Believers]: Ayat 39-40

৩৯) রসূল বললো, ‘‘হে আমার রব! এ লোকেরা যে আমার প্রতি মিথ্যা আরোপ করলো এ ব্যাপারে এখন তুমিই আমাকে সাহায্য করো৷’’
৪০) জবাবে বলা হলো, ‘‘অচিরেই তারা নিজেদের কৃতকর্মের জন্য অনুশোচনা করবে৷’’

Ayat 39. He (Nuh PBUH) said: "O my Lord! Help me because they deny me."

Ayat 40. (Allah) said: "In a little while, they are sure to be regretful."

[Tafseer] of ayat 39. (The prophet Nuh PBUH) said: "O my Lord! help me: for that they accuse me of falsehood." Every prophet is maligned and persecuted: it is always the same story with them, told in different ways. ayat 40. ((Allah)) said: "In but a little while, they are sure to be sorry!" When the Punishment conies, they will be sorry for themselves, but it will be too late then. 

Hazrat Abu Musa Al-Ash`ari (May Allah be pleased with him) reported: When the Messenger of Allah [SAWW](PBUH) had any fear of an enemy, he used to supplicate: "Allahumma inna naj`aluka fi nuhurihim, wa na`udhu bika min shururihim (O Allah! We put You in front of them, and we seek refuge in You from their evils).''

[Ahmad and Abu Dawud Hadith # 1537].  

Lesson : as mentioned above in Surah Al-Muminun Ayat 39."(Nuh PBUH) said: "O my Lord! Help me" When one is gripped with fear, he should recite the prayer quoted in the text of this Hadith. Since Allah is the One Who saves from an enemy, one should therefore, pray to Him and beseech His Help.