Ibn Umar reported Allah's Apostle (ﷺ) saying like this but with this change of words:
" She sometimes finds a way in one flock and then in another flock." (AR)
Reference (AR): Sahih Muslim 2784 b (AR)
In-book reference (AR): Book 51, Hadith 21 (AR)
USC-MSA web (English) reference(deprecated numbering scheme): Book 38, Hadith 6697 (AR)