His last two journeys were to Sri Lanka, or Serendib as Arab mariners knew it.
serendib
Etymology
() From Arabic سراندیب (sarandib), from Sinhala-dib. Pali and Sanskrit Sinhaladipa and Sinhaladvipa, meaning island of the Sinhala people; dipa meaning island in Pali and Sinhala and dvipa meaning island in Sanskrit. Cognate with Serendip.