It is narrated from Abi Maalik AI-Ashja'ee (Sa'eed bin Taariq bin Ash-yam) Radiyallahu 'Anhu that Rasulullah Sallallahu 'Alayhi Wasallam said:
"The one who sees me in ones dream, has seen me" (AR)
App reference (AR): Book 56, Hadith 3 (AR)
English reference (AR): Book 55, Hadith 391 (AR)
Arabic reference (AR): Book 56, Hadith 408 (AR)