Muwatta Malik #1737
Madina
The Arabic includes the chain of narration (sanad) and the collector's commentary; the English translation shows the Prophet's words only.
قَالَ مَالِكٌ وَحَدَّثَنِي يَحْيَى بْنُ سَعِيدٍ، أَنَّ عَائِشَةَ، قَالَتْ وَكَانَ عَامِرُ بْنُ فُهَيْرَةَ يَقُولُ قَدْ رَأَيْتُ الْمَوْتَ قَبْلَ ذَوْقِهِ إِنَّ الْجَبَانَ حَتْفُهُ مِنْ فَوْقِهِ .
Malik said that Yahya ibn Said had related to him that A'isha
said that Amir ibn Fuhayra had said at the time of the epidemic, "I
have seen death before tasting it, the coward's destination is from
above him."
About Muwatta Malik
This hadith is #1737 from Muwatta Malik, in the Book of Madina.