In a narration of Muslim:

"When there was an eclipse of the sun, Allah's Messenger (ﷺ) performed eight bowings with four prostrations (in a two Rak'ah prayer for Eclipse)".

وَفِي رِوَايَةٍ لِمُسْلِمٍ: { صَلَّى حِينَ كَسَفَتِ اَلشَّمْسُ ثَمَانَ رَكَعَاتٍ فِي أَرْبَعِ سَجَدَاتٍ } [1]‏ .‏