The Command to be Patient and to refrain from being Hasty like Yunus was

Allah says,

فَاصْبِرْ

1-This is the literal translation of the Qur'anic phrase used here. The exegetes have explained it in two different ways. Some of them are of the view that, according to the Arabic usage, 'exposure of the shin' is an idiomatic expression for a severe state of distress. When a person is confronted with such a distress, he normally lays his shins bare. Therefore, exposure of the shin has been taken as indicative of such a state. Given this interpretation, the verse means that on the day when the disbelievers will face the severe distress, they will be called upon to prostrate themselves, but they will not be able to do so, because their backs will be made flat, with no elasticity to bow down. Some other commentators, however, take the phrase in its literal sense. They say that the 'Shin' referred to here is the Shin of Allah Ta'ala, which is one of His attributes, the exact nature of which is neither known to anybody, nor discoverable in this world. (But obviously, it is not like the shins of human beings). According to this interpretation, the verse means that, at some stage on the Day of Judgment, Allah Ta'ala will expose this attribute of His which is called 'Shin', and they will be called upon to prostrate before it. This interpretation is supported by an authentic hadith reported by Bukhari and Muslim.

2-It refers to Sayyidna Yunus (علیہ السلام) who was devoured by a fish after he left his nation. Full description of the event has been given in Surah Yunus. (Muhammad Taqi Usmani)