Maarif-ul-Quran (En) - Az-Zukhruf : 86
وَ لَا یَمْلِكُ الَّذِیْنَ یَدْعُوْنَ مِنْ دُوْنِهِ الشَّفَاعَةَ اِلَّا مَنْ شَهِدَ بِالْحَقِّ وَ هُمْ یَعْلَمُوْنَ
And those whom they invoke besides Him have no power to intercede, but those who bear witness to the truth, while they have knowledge (may intercede for the believers with Allah's permission).
Top