One verse

Srimad Bhagavatam 5.17.9

5.17.9

तथैवालकनन्दा दक्षिणेन ब्रह्मसदनाद्ब‍हूनि गिरिकूटान्यतिक्रम्य हेमकूटाद्धैमकूटान्यतिरभसतररंहसा लुठयन्ती भारतमभिवर्षं दक्षिणस्यां दिशि जलधिमभिप्रविशति यस्यां स्‍नानार्थं चागच्छत: पुंस: पदे पदेऽश्वमेधराजसूयादीनां फलं न दुर्लभमिति ॥ ९ ॥

tathaivalakananda daksinena brahma-sadanad bahuni giri-kutany atikramya hemakutad dhaimakutany ati-rabhasatara-ramhasa luthayanti bharatam abhivarsam daksinasyam disi jaladhim abhipravisati yasyam snanartham cagacchatah pumsah pade pade ’svamedha-rajasuyadinam phalam na durlabham iti.

tatha eva
similarly
alakananda
the branch known as Alakananda
daksinena
by the southern side
brahma-sadanat
from the city known as Brahmapuri
bahuni
many
giri-kutani
the tops of mountains
atikramya
crossing over
hemakutat
from Hemakuta Mountain
haimakutani
and Himakuta
ati-rabhasatara
more fiercely
ramhasa
with great force
luthayanti
plundering
bharatam abhivarsam
on all sides of Bharata-varsa
daksinasyam
in the southern
disi
direction
jaladhim
the ocean of salt water
abhipravisati
enters into
yasyam
in which
snana-artham
for bathing
ca
and
agacchatah
of one who is coming
pumsah
a person
pade pade
at every step
asvamedha-rajasuya-adinam
of great sacrifices like the Asvamedha yajna and Rajasuya yajna
phalam
the result
na
not
durlabham
very difficult to obtain
iti
thus

Similarly, the branch of the Ganges known as Alakananda flows from the southern side of Brahmapuri (Brahma-sadana). Passing over the tops of mountains in various lands, it falls down with fierce force upon the peaks of the mountains Hemakuta and Himakuta. After inundating the tops of those mountains, the Ganges falls down onto the tract of land known as Bharata-varsa, which she also inundates. Then the Ganges flows into the ocean of salt water in the south. Persons who come to bathe in this river are fortunate. It is not very difficult for them to achieve with every step the results of performing great sacrifices like the Rajasuya and Asvamedha yajnas.