Allah sent down His Divine Inspiration to His Apostle continuously and abundantly during the period preceding his death till He took him unto Him. That was the period of the greatest part of revelation; and Allah's Messenger (ﷺ) died after that.
Sahih al-Bukhari Book 66, Hadith 4
← Previous Hadith The Prophet (ﷺ) said, "Every Prophet was given miracles because of which people believed, but what I have been given, is Divine Inspiration which Allah has revealed to me. So I hope that my followers will outnumber the followers of the other Prophets on the Day of Resurrection."

Sahih al-Bukhari Book 66, Hadith 3 Next Hadith → Once the Prophet (ﷺ) fell ill and did not offer the night prayer (Tahajjud prayer) for a night or two. A woman (the wife of Abu Lahab) came to him and said, "O Muhammad ! I do not see but that your Satan has left you." Then Allah revealed (Surat-Ad-Duha): 'By the fore-noon, and by the night when it darkens (or is still); Your Lord has not forsaken you, nor hated you.' (93)

Sahih al-Bukhari Book 66, Hadith 5