Tafsir of Surah Al-Muddaththir 74:48

﴿فَمَا تَنفَعُهُمْ شَفَاعَةُ الشَّافِعِينَ﴾

So there will not benefit them the intercession of [any] intercessors.

English Translation - Noor International Center — v1.1.2 · QuranEnc.com

The words of the two imams are given in their original Arabic, verbatim, with references.

Imam Ibn al-Qayyim

أي لا تكون شفاعة فتنفع«مدارج السالكين بين منازل إياك نعبد وإياك نستعين» 2/221