(via Agnimitra on BRF).
Sheikh Ahmad Sirhindi, per Wiki, 1564-1624, "has been described as the
Mujaddid Alf Thānī, meaning the "reviver of the second millennium",
for his work in rejuvenating Islam and opposing the heterodoxies prevalent in the time of
Mughal Emperor
Akbar." He stands prominently in the lineage of the Naqshbandi Sufi order. The writing below explodes the idea that Sufis are "moderate".
PS: if you're puzzled how Sirhindi jumps from Hindus to Jews, it is an artifact of the compiler of this, Andrew Bostom; Sirhindi has a letter on the killing of Jews. It is strange only because Sirhindi likely never met a Jew.
PPS: The "accursed kafir of Gobindwal" I think is
Guru Arjan the fifth Sikh Guru.