Al-Hubab ibn al-Mundhir ibn Zayd (Arabic: الحباب بن المنذر بن زيد) was one of the prominent Sahaba and Ansar from the Khazraj tribe.
He participated during in the meeting at saqifah during the Succession to Muhammad. He was also the one who advised Muhammad on filling all but one well during the battle of Badr.
References
Habab ibn Mundhir Wikipedia(Text) CC BY-SA