The narration with the following wording:

الجنة تحت اقدام الأمهات

Paradise is under the feet of the mothers

is fabricated as Imam Albani clarified in Ad Daaefah 2/58

But he mentioned there that the following narration is authentic and suffices us from the above weak one:

معاوية بن جاهمة أنه جاء النبي صلى الله عليه وسلم فقال : يا رسول الله أردت أن
أغزووقد جئت أستشيرك ؟ فقال : هل لك أم ؟ قال : نعم . قال : فالزمها فإن الجنة تحت رجليها .

(A companion named)  Muawiyah Ibn Jaahimah came to the prophet صلى الله عليه و سلم and said: Oh messenger of Allah I wanted to fight in the battle and I have come to seek your advice. The prophet صلى الله عليه و سلم said: do you have a mother? He said: Yes. He said: Stick to her for indeed paradise is under her two feet.

Imam Albani said its chain is Hassan.

Allah knows best

Mentioned by

Majid Jawed Al-Afghanee
Abu Layl