This hadith has been transmitted on the authority of Sufyan and the words are:
" We could not afford to eat to the fill even dates and water." (ES)
Reference (ES): Sahih Muslim 2975 c (ES)
In-book reference (ES): Book 55, Hadith 40 (ES)
USC-MSA web (English) reference(deprecated numbering scheme): Book 42, Hadith 7096 (ES)